When the Red Hot Chili Peppers played the Super Bowl XLVIII Halftime show, their instruments were unplugged. That, of course, generated some criticism.I am extremely disappointed in the Red Hot Chili Peppers now. Great performance tarnished by fakers. http://t.co/MJ06GKXrGm— Matt Martin (@MattMartin12) February 4, 2014The band's bassist, Flea, posted a letter on their official website Tuesday explaining why they mimed the performance."Dear everybody," he writes. "When we were asked by the NFL and Bruno to play our song Give It ...